Results 71 to 80 of about 692 (185)
The Astrophysical JournalStellar spectra emulators often rely on large grids and tend to reach a plateau in emulation accuracy, leading to significant systematic errors when inferring stellar properties.
Tomasz Różański +2 more
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The dynamical memory of tidal stellar streams
Astronomy & AstrophysicsContext. Stellar streams offer one of the most sensitive probes of the Milky Way’s gravitational potential, as their phase-space morphology encodes both the tidal field of the host galaxy and the internal structure of their progenitors.
Viterbo Giuseppe, Buck Tobias
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EPJ Web of Conferences, 2017 A period of quenching between the formation of the thick and thin disks of the Milky Way has been recently proposed to explain the observed age-[α/Fe] distribution of stars in the solar neighbourhood.
Thomas Alexandra +7 more
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Reconstruction of Core‐Surface Flows During the Last 3,300 Years
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 3, March 2026.Abstract Understanding the Earth's magnetic field evolution requires examining the fluid flow at the core‐mantle boundary that drives the changes over different timescales. The inversion process to derive core‐surface flow velocities from secular variation data encounters non‐uniqueness issues, necessitating a priori assumptions that yield different ...
Pablo Rivera +2 more
wiley +1 more source
Galactic archaeology through the lens of asteroseismology
, 2023 Presentation given at the conference Bulge40: "The Galactic bulge and beyond: A conference in honor of Mike Rich", 18-22 September 2023, Elba Island (Italy)
openaire +2 more sources
Galactic Archaeology and Asteroseismology: A Synergetic Approach
, 2022 The author is supported by Fundação para a Ciência e a Tecnologia (FCT, Portugal) in the form of a work contract (CEECIND/00476/2018).
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Asteroseismology And Galactic Archaeology
, 2018 The Milky Way is a complex system, with dynamical and chemical substructures, where several competing processes such as mergers, secular evolution, gas accretion and gas take place. To study how such a giant spiral galaxy was formed and evolved, we need to reconstruct the sequence of its main formation events with high temporal resolution ...
openaire +2 more sources
The GALAH Survey and Galactic Archaeology in the Next Decade
, 2016 The field of Galactic Archaeology aims to understand the origins and evolution of the stellar populations in the Milky Way, as a way to understand galaxy formation and evolution in general.
Martell, Sarah L ; https://orcid.org/
core
Galactic Surveys in the Gaia Era
, 2017 The final astrometric data from the Gaia mission will transform our view of the stellar content of the Galaxy, particularly when complemented with spectroscopic surveys providing stellar parameters, line-of-sight kinematics and elemental abundances ...
Rosemary F. G. Wyse
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[X/Fe] Marks the Spot: Mapping Chemical Azimuthal Variations in the Galactic Disk with APOGEE
The Astrophysical JournalChemical cartography of the Galactic disk provides insights into its structure and assembly history over cosmic time. In this work, we use chemical cartography to explore chemical gradients and azimuthal substructure in the Milky Way disk with giant ...
Zoe Hackshaw +6 more
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